Used primarily in research as an intermediate in organic synthesis, particularly in the preparation of heterocyclic compounds, pharmaceuticals, and biomolecules. It serves as a nitrosating agent in specialized chemical reactions and as a model compound for studying the mechanisms of nitrosamine formation, which is essential for evaluating the toxicity and carcinogenic potential of certain chemicals. Additionally, it is employed as a reference standard in the analysis of contaminants in industrial products and the environment. Due to its potential mutagenic and carcinogenic properties, its use is restricted to controlled laboratory environments and is not employed in consumer products or broad industrial applications outside of scientific study.